I think this is great advice from Twitter and developers should follow it. Twitter is totally correct--if you haven't entered this space by now, and you still

I think this is great advice from Twitter and developers should follow it. Twitter is totally correct--if you haven't entered this space by now, and you still want to, you are probably overlooking much more interesting opportunities. Why would you develop a new Twitter client anyhow? You might make $5 a seat from a few thousand users who will expect you to maintain your product in perpetuity.